import AddIcon from "@mui/icons-material/Add";
import ConfirmationNumberIcon from "@mui/icons-material/ConfirmationNumber";
import {
  Button,
  Card,
  CardActionArea,
  CardActions,
  CardContent,
  IconButton,
  Tooltip,
  Typography,
} from "@mui/material";
import React from "react";
import { Family, FamilyApi } from "../api/FamilyApi";
import { CreateFamilyDialog } from "../dialogs/CreateFamilyDialog";
import { JoinFamilyDialog } from "../dialogs/JoinFamilyDialog";
import { useAlert } from "../context_providers/AlertDialogProvider";
import { AsyncWidget } from "../widgets/AsyncWidget";
import { useConfirm } from "../context_providers/ConfirmDialogProvider";
import { RouterLink } from "../widgets/RouterLink";
import { TimeWidget } from "../widgets/TimeWidget";

export function FamiliesListRoute(): React.ReactElement {
  const loadKey = React.useRef(1);

  const [families, setFamilies] = React.useState<Family[] | null>(null);

  const [createFamily, setCreateFamily] = React.useState(false);
  const [joinFamily, setJoinFamily] = React.useState(false);

  const load = async () => {
    setFamilies(await FamilyApi.GetList());
  };

  const reload = () => {
    loadKey.current += 1;
    setFamilies(null);
  };

  const onRequestCreateFamily = async () => {
    setCreateFamily(true);
  };

  const onRequestJoinFamily = async () => {
    setJoinFamily(true);
  };

  return (
    <AsyncWidget
      ready={families !== null}
      loadKey={`families-list-${loadKey.current}`}
      load={load}
      errMsg="Echec du chargement de la liste des familles"
      build={() => (
        <>
          {families!!.length === 0 ? (
            <NoFamilyWidget
              onRequestCreateFamily={onRequestCreateFamily}
              onRequestJoinFamily={onRequestJoinFamily}
            />
          ) : (
            <HasFamiliesWidget
              onRequestCreateFamily={onRequestCreateFamily}
              onRequestJoinFamily={onRequestJoinFamily}
              onRequestRefresh={reload}
              families={families!}
            />
          )}

          {/** Create family dialog anchor */}
          <CreateFamilyDialog
            open={createFamily}
            onClose={() => setCreateFamily(false)}
            onCreated={() => {
              setCreateFamily(false);
              reload();
            }}
          />

          {/** Join family dialog anchor */}
          <JoinFamilyDialog
            open={joinFamily}
            onClose={() => setJoinFamily(false)}
            onJoined={() => {
              setJoinFamily(false);
              reload();
            }}
          />
        </>
      )}
    />
  );
}

function NoFamilyWidget(p: {
  onRequestCreateFamily: () => void;
  onRequestJoinFamily: () => void;
}): React.ReactElement {
  return (
    <div style={{ flex: 1, display: "flex", alignItems: "center" }}>
      <Typography variant="h3" style={{ flex: 3, textAlign: "center" }}>
        Vous n'appartenez à aucune famille !
      </Typography>

      <div
        style={{
          flex: 2,
          display: "flex",
          flexDirection: "column",
          alignItems: "center",
        }}
      >
        <NoFamilyButton
          label="Créer une famille"
          onClick={p.onRequestCreateFamily}
        />

        <NoFamilyButton
          label="Rejoindre une famille"
          onClick={p.onRequestJoinFamily}
        />
      </div>
    </div>
  );
}

function NoFamilyButton(p: {
  label: string;
  onClick: () => void;
}): React.ReactElement {
  return (
    <Button
      variant="outlined"
      size="large"
      style={{ width: "300px", marginBottom: "10px" }}
      onClick={p.onClick}
    >
      {p.label}
    </Button>
  );
}

function HasFamiliesWidget(p: {
  families: Family[];
  onRequestCreateFamily: () => void;
  onRequestJoinFamily: () => void;
  onRequestRefresh: () => void;
}): React.ReactElement {
  return (
    <div style={{ width: "100%", maxWidth: "800px", margin: "20px auto" }}>
      <div
        style={{
          display: "flex",
          justifyContent: "space-between",
          marginBottom: "10px",
        }}
      >
        <Typography variant="h4">Mes familles</Typography>
        <div>
          <IconButton aria-label="create" onClick={p.onRequestCreateFamily}>
            <Tooltip title="Créer une nouvelle famille">
              <AddIcon />
            </Tooltip>
          </IconButton>
          <IconButton aria-label="create" onClick={p.onRequestJoinFamily}>
            <Tooltip title="Rejoindre une famille">
              <ConfirmationNumberIcon />
            </Tooltip>
          </IconButton>
        </div>
      </div>

      {/* Display user memberships */}
      {p.families.map((f) => (
        <FamilyCard key={f.family_id} f={f} onFamilyLeft={p.onRequestRefresh} />
      ))}
    </div>
  );
}

function FamilyCard(p: {
  f: Family;
  onFamilyLeft: () => void;
}): React.ReactElement {
  const confirm = useConfirm();
  const alert = useAlert();

  const leaveFamily = async () => {
    try {
      if (
        !p.f.CanLeave ||
        !(await confirm(
          "Voulez-vous vraiment quitter la famille " + p.f.name + " ?"
        ))
      )
        return;

      await FamilyApi.LeaveFamily(p.f.family_id);

      p.onFamilyLeft();

      alert(
        `La famille ${p.f.name} a été retirée de votre liste de familles !`
      );
    } catch (e) {
      console.error(e);
      alert("Echec du retrait de la famille !");
    }
  };

  return (
    <Card style={{ margin: "5px" }}>
      <CardActionArea>
        <RouterLink to={p.f.BaseURL}>
          <CardContent>
            <Typography gutterBottom variant="h5" component="div">
              {p.f.name}
            </Typography>
            <Typography variant="body2" color="text.secondary">
              <span style={{ fontStyle: "italic" }}>
                {p.f.is_admin ? "Administrateur" : "Membre"}
              </span>
              <br />
              {p.f.count_members === 1
                ? "1 membre"
                : p.f.count_members + " membres"}
              <br />
              {p.f.count_admins === 1
                ? "1 administrateur"
                : p.f.count_admins + " administrateurs"}
              <br />
              Famille créée il y a <TimeWidget time={p.f.time_create} />
            </Typography>
          </CardContent>{" "}
        </RouterLink>
      </CardActionArea>
      <CardActions>
        <Tooltip
          title={
            p.f.CanLeave
              ? "Quitter la famille"
              : "Vous ne pouvez pas quitter cette famille, pour la retirer de cette liste vous devez la supprimer."
          }
        >
          <span style={{ marginLeft: "auto" }}>
            <Button
              size="small"
              color="primary"
              disabled={!p.f.CanLeave}
              onClick={leaveFamily}
            >
              Quitter
            </Button>
          </span>
        </Tooltip>
      </CardActions>
    </Card>
  );
}